Seeing as you have tested it on both machines try disabling the firewall!

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"John" <no@spam.com> wrote in message news:f2u008$6if$1@reader2.panix.com...[color=blue]
> Good Day, folks.
>
> I am curious if anyone would have any suggestions regarding the poor
> network performance under Windows Vista Business. Before I get into
> the crux of the issue, I'll briefly describe my setup.
>
> Machine 1 - Windows Vista Business.
> Machine 2 - Windows XP Professional.
> Machine 3 - FreeBSD 6.2-Stable Workstation.
> Machine 4 - FreeBSD 6.2-Stable Server.
>
> The server houses a 2.5TB RAID 5 array with a 3Ware hardware-based RAID
> controller. All of the machines have at least 2GB RAM, C2D processors and
> gigabit Ethernet. The router/switch is gigabit capable, although it does
> not support jumbo Ethernet frames.
>
> The basic issue is that transfers from, or to, the Vista machine are
> typically 75% less than any of the other machines:
>
> Server <-> XP or the workstation yields approx. 35MB/sec to 55MB/sec.
> Server <-> Vista yields approx. 4MB/sec to 12MB/sec.
>
> This is not a machine specific issue as I've installed FreeBSD for testing
> purposes on the machine that Vista is currently installed on and network
> performance was as expected with an average of 50MB/sec on the same
> hardware.
>
> I've tried a number of suggestions as per numerous websites, as well as
> these newsgroups. Some of these suggestions include:
>
> - Disabling Remote Differential Compression.
> - Disabling TCP Autotuning.
> - Installing Hotfix KB931770.
> - Disabling Indexing.
> - Updating the NIC drivers to the latest available.
>
> Although the above did increase throughput by about 1-2MB/sec, this
> is still rather unacceptable. I tend to find it rather hard to believe
> that an issue such as this is still present months after the general
> release of Vista, and one that is rather widespread based on various
> newsgroups and web-based forums.
>
> I am really hoping that someone could provide suggestions that would
> remedy this issue. I routinely push multi-gigabyte files to and from
> the server from this machine, and this performance issue is getting
> painful to deal with.
>
> Any help and/or suggestions would be most appreciated.
>[/color]